Bacterial DNA and Extra Chromosomal Elements Quiz
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Questions and Answers

Which of the following is a key difference between prokaryotic and eukaryotic DNA?

  • Prokaryotic DNA is circular while eukaryotic DNA is linear (correct)
  • Prokaryotic DNA is found within the nucleus while eukaryotic DNA is found in the cytoplasm
  • Prokaryotic DNA is bound to histone proteins while eukaryotic DNA is not
  • Prokaryotic DNA contains introns while eukaryotic DNA does not

What is the primary function of the bacterial cell wall?

  • To allow the exchange of nutrients and waste products
  • To generate energy through ATP synthesis
  • To provide structural support and protection for the cell (correct)
  • To facilitate movement and locomotion of the cell

Which of the following is a key function of bacterial flagella?

  • To provide structural support and protection for the cell
  • To allow the cell to move and navigate its environment (correct)
  • To facilitate the exchange of nutrients and waste products
  • To generate energy through ATP synthesis

What is the primary function of the bacterial capsule?

<p>To help the cell evade the host's immune system (A)</p> Signup and view all the answers

Which of the following is a key difference between prokaryotic and eukaryotic mRNA?

<p>Prokaryotic mRNA is monogenic/mono-cistronic, while eukaryotic mRNA is polygenic/poly-cistronic (D)</p> Signup and view all the answers

What is the structure called that contains the genetic material in prokaryotic cells?

<p>Nucleoid (C)</p> Signup and view all the answers

What is the function of the cell wall in bacteria?

<p>Protection from osmotic stress (A)</p> Signup and view all the answers

Which structure is responsible for bacterial motility?

<p>Flagella (E)</p> Signup and view all the answers

What is the main function of flagella in bacteria?

<p>Providing motility (D)</p> Signup and view all the answers

What is the function of the capsule in bacteria?

<p>Protection from desiccation and phagocytosis (A)</p> Signup and view all the answers

What component is absent in the nuclear body of prokaryotes?

<p>Histones (C)</p> Signup and view all the answers

What is the primary function of the bacterial cell wall?

<p>To provide structural support and shape (B)</p> Signup and view all the answers

What is the role of flagella in bacteria?

<p>For locomotion and chemotaxis (D)</p> Signup and view all the answers

Which of the following statements about bacterial capsules is correct?

<p>They protect bacteria from phagocytosis and desiccation (A)</p> Signup and view all the answers

What is the function of the nuclear body in prokaryotic cells?

<p>Prokaryotes do not have a defined nuclear body (A)</p> Signup and view all the answers

Which component of the Gram-negative cell wall is responsible for endotoxin activity?

<p>Lipopolysaccharide (LPS) (D)</p> Signup and view all the answers

What is the primary function of bacterial fimbriae?

<p>Adhesion to host cells and surfaces (D)</p> Signup and view all the answers

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